Vapor tube



FIG. 1 is a top perspective view of a first embodiment of my new design for a vapor tube;

FIG. 2 is a front elevational view thereof, the opposite side not shown is a mirror image thereof;

FIG. 3 is a left side elevational view thereof, the opposite side not shown is a mirror image thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an exploded bottom perspective view thereof;

FIG. 7 is a top perspective view of a second embodiment of my new design for a vapor tube; and,

FIG. 8 is a top perspective view of a third embodiment of my new design for a vapor tube.

In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a vapor tube, as shown and described. 